Monkey-wrench



(No Model.)

G. B. SANBORN.

MONKEY WRENCH.

gmw

.Attorney NITED STATES ATENI OFFICE.

GUSTAVUS B. SANBORN, OF BRISTOL, NEXV HAMPSHIRE.

MONKEY-WRENCH.

SPECIFICATION forming part of Letters Patent No. 303,752, dated August 19, 1884-.

Application filed May 13. 1884. (No model.)

To (bl/Z whom it may concern. I designates a set-screw in the heel of the Be it known that I, GUs'rAvUs I SANBORN, movable jaw F, for looking it in place on the a citizen of the United States, residing at Brislever A when it has been adjusted to any detol, in the county of Grafton and State of New sired point thereon for turningnuts of regular 5 Hampshire, have invented a new and useful sizes. J designates the milled head of the Improvement in l\Ionkey-lVrenches, of which thumbscrew E, which is provided with perthe following is a specification, reference being forations K, made diametrically through it to 40 had to the accompanying drawings. receive the point of an awl, or the like, to turn This invention has relation to monkeythe thnmbscrewE when it cannot be turned 10 wrenches; and it consists in the construction sufficiently tight with the hand.

and novel combination and arrangement of The utility of the improvements is obvious, parts, as will be hereinafter fully described, and-will be readily understood from the fore and partimilarly pointed out in the claim. going description, when taken in connection Figure l is a view in perspective of a monwith the accompanying drawings. 1 key wrench embodying my improvements. Having thus fully described my invention, Fig. 2 is a vertical sectional view through the what I claim as new, and desire to secure by rectangular tapering socket in the stationary Letters Patent of the United States, is-

jaw. Fig. 3isaverticalsectional viewthrough Theherein-described compound tool, comthemovable jaw, and the set-screw for holding prising the lever A, having the handle 13 at 20 it to its adjustment; and Fig. 4is avertical sccone end, and the stationary jaw G, having the tional view through the perforated head of the rectangular tapering transverse socket H passthuinb-screw, by which the movablejaw of the ing entirely through it at the other end, the

' 'wrench is operated. movable jaw F on said lever A, the thumb- Referring by letter to the accompanying screwE, having milled head, with perforations 2 5 drawings, Adesignates theleverof the wrench, K, and the set-screw I, for locking the movhaving the handle B and the collar O,with the able jaw F on the lever A, as set forth. usual seat D, for the end of the thumb screw In testimony that I claim the foregoing as E, by which the movable jaw F is operated. my own I have hereto affixed my signature in G designates thestationary jaw of the wrench, presence of two witnesses.

3o whichis provided with a rectangular tapering GUSTAVUSS B. SANBORN.

socket, H, for operating a screw-driver, a bit \Vitnesses: to turn in or out a rusty woodscrew that MARY M. PAGE,

cannot be turned by hand or with the brace. JOHN G. PAGE. 

